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ASP.NET MVC 6 Routing Technique

Before we jump to custom routing, we will have to take a look at the basic changes in MVC6 from MVC5. ASP.NET MVC6 places all startup necessary services, defined and configured dependencies for the application, in a single file, Startup.cs. The Startup.cs file replaces all the functionality of global.asax where we put the middleware and configuration logic.

As we know, the routing actions are getting managed by the Routes.MapRoute method. In ASP.NET MVC 6 Routes.MapRoute, you won’t find this method as a part of Startup.cs file which now contains very few lines of code. You will also notice that there is no ad-hoc configuration file to take care of RouteConfig.cs, WebApiConfig.cs or other intermediate handlers recurrently shipped with the earlier ASP.NET versions and MVC pattern project templates. Startup.cs file has services.AddMvc() and services.UseMvc() methods to handle the routing action.

We can take a look at the current implementation of the UseMvc() method in the application code.

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We can add our own routing using an Attribute Based and/or Convention Based approach. I am using both methods because if we use two approaches together Attribute based routing overrides Convention based routing. Both routings would override the existing default routes defined by the UseMvc() method.

Attribute Based Routing

We have to write code in the controller to implement attribute based routing.

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Convention Based Routing

We have to write code in Startup.cs to implement attribute based routing.

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